Title:
FLAT LAMINATED TRANSFORMER
Document Type and Number:
Japanese Patent JP3163945
Kind Code:
B2
Abstract:
PURPOSE: To provide a flat laminated transformer reducing in a board mounting occupying area while decreasing a loss and a height with high coupling without noise disturbing at the exterior of the transformer in the transformer used for various electronic equipment.
CONSTITUTION: The sectional shape of the magnetic leg of the intermediate leg of a core 1 is formed in a circle, the inner periphery of the magnetic leg of an outer leg is formed concentric circular arc-like state with the intermediate leg, the thickness width of the magnetic leg 1b of the outer leg is formed larger than the diameter of the leg 1a of the intermediate leg, the laminated thickness width of the yoke of a back surface is formed in different size between right and left sides with the centerline of the intermediate leg as a reference, and when a pair of the cores are assembled, a laminated coil 2 having terminals 4 extended to the right and left is assembled with a flat optimum shape core where the height of the window is formed smaller than the window width of the core.
Inventors:
Koji Nakajima
Hiroyuki Handa
Hiroyuki Handa
Application Number:
JP12475395A
Publication Date:
May 08, 2001
Filing Date:
May 24, 1995
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01F17/04; H01F19/00; H01F27/255; (IPC1-7): H01F17/04; H01F19/00; H01F27/255
Domestic Patent References:
| JP57201824U | ||||
| JP670223U |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)